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My name is Ann [436]
3 years ago
15

PLEASE ANSWER THIS

Mathematics
1 answer:
SVEN [57.7K]3 years ago
5 0
The degree is 2 becasuse of the x^2  and there are 3 terms so it is a trinomial.
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What is 4x(5x-2)=20x-2
Zanzabum

Answer: x = 1.32 and x= 0.076

Step-by-step explanation:

4x(5x-2) = 20x-2

20x^2-8x = 20x-2

20x^2-8x-20x+2=0

20x^2-28x+2=0

Using quadratic equation

x = (-b +or- √(b^2-4ac))/2a

a =20, b=28, c= 2

Substitute into the equation

x= (7+√39)/10. = 1.32

x = (7-√39)/10 = 0.076

7 0
2 years ago
Factor the expression using distributive property: 72b + 45
ANTONII [103]
The answer would be 9(8b+5)
this is how you do it...
1. find the GCF of both numbers in this one the GCF would be 9 
now, what do you multiply 9 by to get 72... 8, so 8 would go into the parenthesis and because there is a variable there which is 'b' the 8 would become '8b' now what do you multiply 9 with to get 45? '5' so you would add 5 into the parenthesis and that would be your answer!

Hope this helped! :D
8 0
3 years ago
3+8-4x2-12 <br> Put parentheses to get the answer 2
sesenic [268]
(3+8-4)x2-12 =2 the answer is 2
5 0
3 years ago
Are 7/18 and -21/-56 are equivalent​
kap26 [50]

Answer:

yes they are equivalent. if you simplify -21/-56 by dividing it by 3 you will get -7/-21 which equals to 7/21

6 0
2 years ago
Miss siegel’s class has 18 girls and 12 boys. What is the ratio of girls to boys?
alexgriva [62]

Answer:

3:2

Step-by-step explanation:

girls: boys

18    : 12

Divide each side by 6

18/6 :  12/6

3   : 2

4 0
3 years ago
Read 2 more answers
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